Technical Library

Time domain and depth domain focusing operators are introduced to estimate anisotropic parameters. The fully automated time domain focusing operator to derive anisotropy model for depth migration...

Accurate salt interpretation involves an integration of geology and geophysics. In the practice of salt interpretation and model building in depth imaging, we see two problems that could happen:...

We generalize the pseudo-spectral method for the acoustic wave equation to create analytical solutions to the constant velocity acoustic wave equation in an arbitrary number of space dimensions. We...

It is well understood that accurate salt interpretation is critical to subsalt imaging. When reflections from the saltsediment boundaries are not discernible, it takes many iterations to test various...

Immediately offshore of the Mississippi Delta the geological setting conspires with numerous production installations to produce a unique set of problems that a seismic survey must overcome if it is...

Seismic anisotropy refers to seismic waves traveling with different velocity at different propagation angle, usually in consolidated, shale-prone areas such as in Gulf of Mexico and West Africa....

Despite the development of excellent techniques for predicting multiples such as convolution based or wavefield extrapolation based approaches, subtracting multiples in the data using the predicted...

Salt model building is a key process for successful subsalt imaging. In complex areas, Reverse Time Migration (RTM) provides better images than One-way Wave Equation Migration (OWEM) or Kirchhoff...

Wavefield extrapolation (WFE) multiple prediction typically operates in common shot domain, and is very effective to predict complex multiples such as diffracted multiples; however, it is a...

Reverse-time migration (RTM) provides superior images in areas where there are steep salt flanks or other complex geologic structures. However, the high cost of running RTM with regard to memory...